Perpetual calendar



Oct, 5, 1937. lF. G. HELLuR PERPETUAL CALENDAR Filed Nov. 27, 1955 Patented Oct. 5, 1937 UNlTED STATES PATENT OFI-HCE 2 Claims.

My invention relates to recording devices and has among its objects and advantages the provision of an improved perpetual calendar.

In the accompanying drawing:

Figure l is a front elevation;

Figure 2 is a sectional View along the line 2 2 of Figure 1;

Figure 3 is a sectional View along the line 3-3 of Figure 2;

Figure 4 is a sectional view along the line 4-4 of Figure 2;

Figure 5 is a sectional View along theline 5-5 of Figure 3; and

Figure 6 is a fragmentary View of the date strip.

In the embodiment selected to illustrate my invention I make use of a cabinet l@ comprising a bottom l2, end Walls l, a rear Wall iii, a top lll, and a front Wall 2@ arranged in angular relation with the rear Wall le. Three sight openings 22, 2li and 26 are provided in the iront Wall for exposing reading matter pertaining to years, months, Weeks and days. The sight opening 22 exposes reading matter relating to any given month of the year, while the sight opening 2li exposes the days of the month. A sight opening 26 indicates the iirst day of each month over a period of time. The reading matter associated with each opening maybe shifted to indicate successive periods of time.

Three drums 28, 33 and 32 are mounted inside the cabinet lli in association with the sight openings 22, 24 and 26, respectively. In Fig. 2, I illustrate a channel-shaped member 3Q for supporting the drums 28, til and 32. The bight 36 of the member 365 bears against a spacer 38 positioned against the inner face of the front Wall 2t. Referring to Fig. 3, the bight is extended beyond the ends of the flanges llt and lll of the member Sil and provided with openings for the reception of screws l2 anchored in the vertical spacers 38 and the front Wall 22. The flange lll is formed integrally with the bight 32 While the iiange il includes a narrow flange 23 Welded to the bight. Each drum 28, 3b and 32 includes a bottom #it and a top 46 (see Fig. 5). The top and bottom of each drum are provided With aligned openings for the reception of a shaft i3 extending through aligned openings in the flanges d@ and til of the member 32. In Fig. 5, I mount spacers 5@ upon each shaft 43 which spacers hold the tops and bottoms of the drum out of frictional relation With the flanges lll and lil.

In the drawing, I illustrate each shaft 23 as comprising an unthreaded bolt having a head 52 bearing against the flange lill, and. its Opposite (Cl. L10---118) end provided with an opening for reception of a pin 513 positioned underneath the flange il to prevent endvvise movement of the shafts. Each drum is rotatably mounted upon` its respective shaft d8.

Endless bands 56, 58, and 6l) are associated with the drums 23, 3i] and 32, respectively. Referring to Fig. 3, the bight 35 is slit to provide openings 22, i563-, Sii, and t8 through which the Webs 5t, 58 and @il vare threaded. The material of the bight adjacent the slits is bent as at 'lil to provide a gentle curvature for guiding the web. The arrangement of the openings t2, fl, and 66 is such as to provide straight reaches lll, i6 and 1B in the Webs 5t, 58 and 60, respectively. In referring to Fig. 3, it Will be noted that the reaches lll, lli, and i8 extend across the sight openings 22, 22 and 26, respectively, and that the reaches lie adjacent a transparent sheet 8b positioned between the bight 33 and the front Wall 2l).

Upon the web 56 I print the months of the year and the number of days in each month, together with other information such as holidays as indicated at 82. Upon the web 58 I print vertical columns of numbers 82, the successive num.- ber in each column increasing by seven, the numbers in the various columns are arranged in lateral alignment and consecutively as 1, 2, 3, etc. Above the group of numbers visible to the sight opening 22 I provide the days of the Week in proper sequence, each day being spaced toI align with one of the vertical columns of numbers exposed through the sight opening 24. The days of the week may be printed on the transparent sheet Bb or upon a thin insert positioned thereagainst. On the web 6i) I print the days in the Week in vertical columns as indicated at 86. Upon the front wall 20 and adjacent one side of the sight opening 26 I print the months of the year as indicated at 33. Each month is positioned to align with one of the days indicated in the column 86, and the days indicated in the column 36 .are selected to indicate the day upon which the first of any month falls. A plurality of columns 82 may be printed upon the Web 63 for a series of years.

Means is provided for rotating the drums 28, 3l] and 32 for changing the reading matter visible through the sight openings 22, 2li and 26. In Figures 2 and 3 the bottoms M of the drums are provided with a plurality of openings 9U arranged to provide spokes 92. These spokes are radially aligned and function as teeth for the gears et. These gears are mounted upon shafts 96 extending through openings in the bight 36 and openings in lips 98 struck from the material of the flange 4|. Each shaft is provided with a collar lili? abutting its respective-lip 98 and co-operates with the hub of its gear 94 to prevent endvvise movement of the shaft. Each shaft 96 carries a knob |02 to facilitate rotation of the drum associated therewith.

I provide a construction in which the reaches M, 1S and 'I8 are of a at nature closely positioned with respect to their respective sight openings. The bands may comprise a strip of material threaded through the openings 62, 64, 56

and 68 and wound about their respective drums and glued together at the proper amount of tension. the front wall or panel 20 and these are associated with a cabinet of suitable design. A slight rotation of the knob I 92 associated Vwith theV sight' opening 24 is sufficient to shift the Vreach 'I6 for proper alignment with the days Vof the VWeek associated with the opening. My gear'construction-- for imparting rotary movement to the drums isv exceedingly simple.

Without further elaboration, theV foregoing will so fully explain my invention that othersV may by applying current knowledge readily adapt the'same for use underY various conditions of service.

I claim:

l. In a device of the type described, a supporting panel having Ya'sight opening, a U-shaped support having its bightgprovided with spaced slots and arranged in slightly spaced relation with said panel, a cylindrical memberY rotatablyV mounted on the legs of the` U-shaped support for rotation' about an axis parallelingsaid pan-F The entire mechanism is mounted upon` port and the other flange comprising material struckV from the said one leg. Y

2. In a device of the type described, a cabinet including a panel provided with a plurality of sight openings, a U-shaped support mounted inside the'cabinet with its bight arranged in parallel relation with said panel and spaced Vtherefrom, the bight of said U-shaped support being provided with a plurality of parallel-slots; a plurality of cylindrical members rotatably mounted on the legs of said U-shaped support, indicia bearing webs passing around. said cylindrical members and threaded through said slots, the material of theY bight between said slots constituting backings for said webs, said cylindrical members having a gear at one end, a pinion arranged in mesh with each gear including a shaft flxedly connected therewith for rotating the pinion, flanges for rotatably supporting said shafts, one of said flanges'comprising an extension of said bight, Vthe remaining flanges constituting material struck from oneY leg ofthe U-shaped support. Y Y

FRANK G. HELLER. 

